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but AUX POWER switch is
not ON.
Select AUX POWER switch ON.
APU EXCEEDANCE Fault warning computer has
recorded an exceedance.
May be caused by APU fire. Take
appropriate action. Recording may be
viewed by selecting "Exceedances" on
Systems menu of the Display Controller.
AT ENGAGE INHIBIT Attempt is made to engage
autothrottle under any of
following conditions:
A/T disconnect button
active
A/T not armed on flight
guidance control panel
Both engines not running
EPR below 1.17
Isolation valve open
Correct inhibiting situation and attempt
reengagement.
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 3
ABNORMAL
PROCEDURES
FAA APPROVED 3B-3
31 May 2001
BLUE ADVISORY MESSAGES
CAS INDICATION CAUSE CORRECTIVE ACTION
AT 1-2 FAIL Indicated autothrottle has
failed, autothrottle will
disconnect.
Check appropriate circuit breakers.
Select other A/T computer and reengage.
AT NOT IN HOLD Airplane speed has
exceeded 60 KCAS with
autothrottle engaged on
takeoff and autothrottle
servos are not in hold.
Disengage autothrottle and manually
adjust throttles to takeoff EPR.
BC 1-2-3 TEST FAIL BUS controller power-up
self test has failed.
Verify power was applied to BC’s and
FWC’s in normal power-up sequence.
Full system capabilities are maintained
on a single BUS controller.
NOTE: This message is only enabled on ground. BC test will fail if
power is momentarily removed from both FWC’s after BC’s
are powered. If this condition occurs, fail message can be
cleared by reapplying airplane power in normal power-up
sequence or by pulling and resetting all three (3) Bus
Controller Circuit Breakers.
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 3
ABNORMAL
PROCEDURES
3B-4 FAA APPROVED
31 May 2000
BLUE ADVISORY MESSAGES
CAS INDICATION CAUSE CORRECTIVE ACTION
BRAKE MAINT REQ’D
(BRAKE-BY-WIRE)
SN 1000 thru 1213. If
message illuminates
following gear retraction
and extinguishes 5 seconds
later, the auto spindown
feature has failed.
Follow Anti-Skid OFF takeoff procedure,
Section 3.
BRAKE MAINT REQ’D
(HMAB)
SN 1214 and subs. If
message illuminates during
takeoff or landing ground
roll or airborne with gear
extended, a wheel speed
sensor miscompare lasting
more than five (5) seconds
has been detected.
Notify maintenance to check for wheel
speed sensor faults or possible dragging
brake(s).
If message illuminates momentarily with
gear down while airborne, no action
required.
BUS CTLR 1-2-3 FL Indicated bus controller has
failed
Check circuit breakers. Full system
capabilities are maintained on a single bus
controller. Cycle CB on failed bus
controller.
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 3
ABNORMAL
PROCEDURES
FAA APPROVED 3B-5
31 May 2001
BLUE ADVISORY MESSAGES
CAS INDICATION CAUSE CORRECTIVE ACTION
CALL Toggled by SELCAL,
Cabin/LAV call,
Galley/Interphone or
Telephone.
Answer appropriate caller.
CDU 1-2 FAIL FMS CDU failed. Verify failure and if failed, use
remaining FMS for navigation.
CHECKLIST
MISMATCH
Different checklist installed
in FWC 1 and FWC 2.
Do not use checklist until correct
checklists are installed.
CMB HYD HOT Hydraulic system fluid
temperature above 220°F
(104°C).
Proceed with flight and investigate after
landing.
L-R CONT IGN
(SPZ 8400 equipped
option)
Continuous ignition is on. Select off if not required. Observe duty
cycle limitations in GIV AFM Section 1,
Limitations.
L-R COWL A/I ON Cowl Anti-Ice On. Turn OFF after exiting icing conditions.
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 3
ABNORMAL
PROCEDURES
3B-6 FAA APPROVED
31 May 2000
BLUE ADVISORY MESSAGES
CAS INDICATION CAUSE CORRECTIVE ACTION
CPL DATA INVALID Lateral or vertical mode
cannot be selected or
canceled automatically due
to invalid source and/or
invalid required sensors.
Message also appears
anytime selected course
changes by greater than 3°
when in LNAV/VOR,
except when overstation
Check validity of coupled source.
DADC 1-2 FAIL A DADC has failed. Verify failure and if failed select
opposite DADC. Verify DADC
selection for pressurization.
　
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